Definitions for virtual memory
vir·tu·al mem·o·ry

Princeton's WordNetRate this definition:0.0 / 0 votes

1. virtual memory, virtual storagenoun

   (computer science) memory created by using the hard disk to simulate additional random-access memory; the addressable storage space available to the user of a computer system in which virtual addresses are mapped into real addresses

WiktionaryRate this definition:0.0 / 0 votes

1. virtual memorynoun

   Memory that appears to be RAM but is being simulated (by a process called paging) on a hard disk; allows a computer to operate as if it had more memory than it actually does, but with some loss of performance

WikipediaRate this definition:0.0 / 0 votes

1. Virtual memory

   In computing, virtual memory, or virtual storage is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very large (main) memory".The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory. Main storage, as seen by a process or task, appears as a contiguous address space or collection of contiguous segments. The operating system manages virtual address spaces and the assignment of real memory to virtual memory. Address translation hardware in the CPU, often referred to as a memory management unit (MMU), automatically translates virtual addresses to physical addresses. Software within the operating system may extend these capabilities, utilizing, e.g., disk storage, to provide a virtual address space that can exceed the capacity of real memory and thus reference more memory than is physically present in the computer. The primary benefits of virtual memory include freeing applications from having to manage a shared memory space, ability to share memory used by libraries between processes, increased security due to memory isolation, and being able to conceptually use more memory than might be physically available, using the technique of paging or segmentation.

ChatGPTRate this definition:0.0 / 0 votes

1. virtual memory

   Virtual memory is a memory management technique that creates an illusion to users of a very large main memory. It is a feature of an operating system that enables a computer to be able to compensate shortages of physical memory by transferring pages of data from random access memory to disk storage. This process is done when a computer's random access memory (RAM) is full. The operating system makes part of the storage drive available to use as if it were real RAM.

WikidataRate this definition:0.0 / 0 votes

1. Virtual memory

   In computing, virtual memory is a memory management technique developed for multitasking kernels. This technique virtualizes the main storage available to a process or task, as a contiguous address space which is unique to each running process, or virtualizes the main storage available to all processes or tasks on the system as a contiguous global address space. The operating system manages virtual address spaces and the assignment of real memory to virtual memory. The CPU automatically translates virtual addresses to physical addresses using special memory management hardware, often referred to as a memory management unit. As long as virtual addresses are resolved to real memory locations the process runs uninterrupted. When translation fails, the operating system takes over and moves the desired memory page from backing store to main memory, returning control to the interrupted process. This simplifies the organization of applications, as, if they need to use more code and data than will fit into real memory, they do not have to move code and data between real memory and backing store. In addition, when processes are given separate address spaces, the technique offers protection to applications by isolating memory from other processes.

Matched Categories

1. • Computer Science
   • Memory

How to pronounce virtual memory?

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How to say virtual memory in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of virtual memory in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of virtual memory in Pythagorean Numerology is: 3

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=virtual memory
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Virtual_Memory
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Virtual_Memory
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=virtual memory